CN108572758A - A kind of determination method and determining device touching maloperation - Google Patents
A kind of determination method and determining device touching maloperation Download PDFInfo
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- CN108572758A CN108572758A CN201710142583.5A CN201710142583A CN108572758A CN 108572758 A CN108572758 A CN 108572758A CN 201710142583 A CN201710142583 A CN 201710142583A CN 108572758 A CN108572758 A CN 108572758A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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Abstract
The invention discloses a kind of determination methods and determining device touching maloperation, this method is analyzed by the curvature for each lines for including in the contact texture pattern to getting, determine the curvature characteristic value of contact texture pattern, and it is compared with curvature feature reference point when normal touch operation, so that it is determined that going out whether the touch operation is to touch maloperation, this method calculates simple, quickly and effectively, it need to only rely on the curvature of lines that can determine that palm touches or finger touches, and then determine whether touch operation is to touch maloperation, facilitate the touch operation of user, the errored response number of touch control device is greatly reduced simultaneously, increase the usage experience of user.
Description
Technical field
The present invention relates to field of computer technology, espespecially a kind of determination method and determining device touching maloperation.
Background technology
As smart mobile phone, tablet computer etc. have becoming increasingly popular for touch screen device, touch-control has become operation electronics
The normal method of equipment.However, due to the use of the difference of scene and use habit, there is many case where touching maloperation,
The maloperation generated when the shelter fallen on the screen is such as wiped using palm during using mobile phone；Use notebook electricity
The maloperation of Trackpad generation is accidentally touched in palm side when brain input content；Because of the touch maloperation of palm when holding mobile phone
It opens the application software on mobile phone and causes to generate unnecessary flow loss etc., it is because of palm that these, which touch maloperation,
Caused by mistaken touch, so that touch control device generates the response of mistake, the usage experience of user is influenced.
In the prior art, prevent the technology for touching maloperation from having much for touch apparatus, such as according to finger and tactile
It controls the contact area between equipment and determines touch maloperation；According between the screen of light intensity, shelter and touch control device
The angle synthesis of the screen and horizontal plane of distance and touch control device, which determines, touches maloperation；According to touch control device screen
Touch-control terminal position, distance factor etc., which determine, touches maloperation, and when being determined as touching maloperation, system can be automatically into anti-
Accidentally touch formula closes screen display；But these prevent from touching maloperation technology just for such as to the screen edge of touch control device
Touch maloperation, the special scenes such as touch maloperation, the touch maloperation of certain gestures when taking phone, have certain
Limitation, processing procedure is also more complex, and determines that the accuracy for touching maloperation is relatively low.
And currently, still without it is a kind of it is relatively simple, fast and efficiently method is determined for leading because of the touch of palm
The screen response of cause is normal operating or maloperation, and is not determined according to the difference of palm lines and finger lines more
Whether touch operation is to touch maloperation；Based on this, how to determine that the touch of palm is to touch maloperation, reduce touch control device
Errored response number increases the usage experience of user, becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
The embodiment of the present invention provides a kind of determination method and determining device touching maloperation, to solve in the prior art
How to determine that the touch of palm is to touch maloperation, reduces the errored response number of touch control device, increase the usage experience of user.
An embodiment of the present invention provides a kind of determination methods touching maloperation, including：
When receiving touching signals, the contact texture pattern of touch operation is obtained；
According to each lines for including in the contact texture pattern got, the curvature of the contact texture pattern is determined
Characteristic value；
By the contact lines of the curvature characteristic value and preset normal touch operation of the contact texture pattern determined
The curvature feature reference point of figure is compared, and determines whether the touch operation is to touch maloperation.
In a kind of possible embodiment, in above-mentioned determining method provided in an embodiment of the present invention, the basis obtains
Each lines for including in the contact texture pattern got determines the curvature characteristic value of the contact texture pattern, specific to wrap
It includes：
Extract all clear lines for including in the contact texture pattern got；
The curvature value of each clear lines is determined respectively；
The contact lines figure is obtained after the curvature value for each clear lines determined is handled according to weighted average
The curvature characteristic value of shape.
In a kind of possible embodiment, in above-mentioned determining method provided in an embodiment of the present invention, the difference is true
The curvature value of fixed each clear lines, specifically includes：
The curvature value of each clear lines is calculated using following formula：
Wherein, AB indicates that a clear lines, Arc (AB) indicate that the curvature value of the clear lines AB, L indicate institute
The physical length between clear lines AB is stated, L' indicates the straight length between the clear lines AB.
It is described to determine in above-mentioned determining method provided in an embodiment of the present invention in a kind of possible embodiment
The curvature feature of the curvature characteristic value and the contact texture pattern of preset normal touch operation of the contact texture pattern gone out
Reference point is compared, and determines whether the touch operation is to touch maloperation, is specifically included：
According to the curvature characteristic value for the contact texture pattern determined and the contact of preset normal touch operation
The curvature feature reference point of texture pattern determines and touches maloperation discriminant value；
When determining that the touch maloperation discriminant value is more than preset touch maloperation threshold limit, it is determined that described to touch
Operation is touched to touch maloperation；
When determining that the touch maloperation discriminant value is not more than preset touch maloperation threshold limit, it is determined that described
Touch operation is normal touch operation.
In a kind of possible embodiment, in above-mentioned determining method provided in an embodiment of the present invention, the basis is true
The curvature of the curvature characteristic value for the contact texture pattern made and the contact texture pattern of preset normal touch operation
Feature reference point determines and touches maloperation discriminant value, specifically includes：
It is calculated using following formula and touches maloperation discriminant value：
Wherein, R indicates the curvature characteristic value for the contact texture pattern determined, R0Indicate preset normal touch behaviour
The curvature feature reference point of the contact texture pattern of work, T indicate the touch maloperation discriminant value.
The embodiment of the present invention additionally provides a kind of determining device touching maloperation, including：
Acquisition module, the contact texture pattern for when receiving touching signals, obtaining touch operation；
First determining module, described according to each lines for including in the contact texture pattern got, determining
Contact the curvature characteristic value of texture pattern；
Second determining module, for normally touching the curvature characteristic value for the contact texture pattern determined with preset
The curvature feature reference point for touching the contact texture pattern of operation is compared, and determines whether the touch operation is to touch accidentally to grasp
Make.
In a kind of possible embodiment, in above-mentioned determining device provided in an embodiment of the present invention, described first really
Cover half block is specifically used for all clear lines in the contact texture pattern that extraction is got included；It determines respectively each described
The curvature value of clear lines；Described connect is obtained after the curvature value for each clear lines determined is handled according to weighted average
Touch the curvature characteristic value of texture pattern.
In a kind of possible embodiment, in above-mentioned determining device provided in an embodiment of the present invention, described first really
Cover half block is specifically used for calculating the curvature value of each clear lines using following formula：
Wherein, AB indicates that a clear lines, Arc (AB) indicate that the curvature value of the clear lines AB, L indicate institute
The physical length between clear lines AB is stated, L' indicates the straight length between the clear lines AB.
In a kind of possible embodiment, in above-mentioned determining device provided in an embodiment of the present invention, described second really
Cover half block is specifically used for the curvature characteristic value of the contact texture pattern according to determining and preset normal touch operation
Contact texture pattern curvature feature reference point, determine touch maloperation discriminant value；Determining the touch maloperation differentiation
When value is more than preset touch maloperation threshold limit, it is determined that the touch operation is to touch maloperation；Determining described touch
When touching maloperation discriminant value no more than preset touch maloperation threshold limit, it is determined that the touch operation is that normal touch is grasped
Make.
In a kind of possible embodiment, in above-mentioned determining device provided in an embodiment of the present invention, described second really
Cover half block, which is specifically used for calculating using following formula, touches maloperation discriminant value：
Wherein, R indicates the curvature characteristic value for the contact texture pattern determined, R0Indicate preset normal touch behaviour
The curvature feature reference point of the contact texture pattern of work, T indicate the touch maloperation discriminant value.
The present invention has the beneficial effect that：
The determination method and determining device of above-mentioned touch maloperation provided in an embodiment of the present invention, the determination method are included in
When receiving touching signals, the contact texture pattern of touch operation is obtained；Include according in the contact texture pattern got
Each lines determines the curvature characteristic value of contact texture pattern；By the curvature characteristic value for the contact texture pattern determined and preset
The curvature feature reference point of contact texture pattern of normal touch operation be compared, determine whether touch operation is to touch to miss
Operation.Therefore, this method is analyzed by the curvature for each lines for including in the contact texture pattern to getting, and determination connects
The curvature characteristic value of texture pattern is touched, and is compared with curvature feature reference point when normal touch operation, so that it is determined that going out
Whether the touch operation is to touch maloperation, and this method calculates simply, quickly and effectively, need to only rely on the curvature of lines that can determine
It is that palm touches or finger touches, and then determines whether touch operation is to touch maloperation, facilitates the touch operation of user,
The errored response number for greatly reducing touch control device simultaneously, increases the usage experience of user.
Description of the drawings
Fig. 1 is a kind of flow chart of the determination method of the touch maloperation provided in the embodiment of the present invention；
Fig. 2 a and the structural schematic diagram that 2b is the contact texture pattern provided in the embodiment of the present invention；
Fig. 3 is the schematic diagram of the lines provided in the embodiment of the present invention；
Fig. 4 is the flow chart of the method for the embodiment one provided in the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of the determining device of the touch maloperation provided in the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, to a kind of determination method and determining device touching maloperation provided in an embodiment of the present invention
Specific implementation mode be described in detail.It should be noted that described embodiment is only that a present invention part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of the every other embodiment that is obtained, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a kind of determination methods touching maloperation, as shown in Figure 1, may include：
S101, when receiving touching signals, obtain the contact texture pattern of touch operation；
Each lines for including in the contact texture pattern that S102, basis are got determines that the curvature of contact texture pattern is special
Value indicative；
S103, by determine contact texture pattern curvature characteristic value and preset normal touch operation contact lines
The curvature feature reference point of figure is compared, and determines whether touch operation is to touch maloperation.
The determination method of above-mentioned touch maloperation provided in an embodiment of the present invention, this method pass through the contact line to getting
The curvature for each lines for including in the figure of road is analyzed, and determines the curvature characteristic value of contact texture pattern, and touch with normal
Curvature feature reference point when operation is compared, so that it is determined that going out whether the touch operation is to touch maloperation, this method meter
Calculation is simple, quickly and effectively, need to only rely on the curvature of lines that can determine palm touch or finger touch, and then determine and touch
Whether operation is to touch maloperation, facilitates the touch operation of user, while greatly reducing the errored response time of touch control device
Number, increases the usage experience of user.
It should be noted that the lines curvature of palm and the lines curvature of finger have larger difference, such as Fig. 2 a and 2b
Shown, Fig. 2 a are the contact texture pattern of finger, it is seen that lines 201 has certain curvature, and the curvature of each lines is different；
Fig. 2 b are the contact texture pattern of palm, it is seen that the curvature of the lines 202 of palm is much smaller with respect to the lines 201 of finger, hand
The curvature of each lines of the palm is relatively small, close to straight line；It therefore, can be according to the lines curvature feature of palm and finger, area
It is that palm touches or finger touches, and then determines whether the touch operation is to touch maloperation to divide when touch operation occurs,
I.e. when determining that palm touches, determines that the touch operation is to touch maloperation, when determining that finger touches, determine the touch operation
For normal touch operation.
In the specific implementation, in order to determine the curvature characteristic value of contact texture pattern, on provided in an embodiment of the present invention
The step S102 in determining method is stated according to each lines for including in the contact texture pattern got, determines contact texture pattern
Curvature characteristic value, can specifically include：
Extract all clear lines for including in the contact texture pattern got；
The curvature value of each clear lines is determined respectively；
The curvature of contact texture pattern is obtained after the curvature value for each clear lines determined is handled according to weighted average
Characteristic value.
Specifically, when get one contact texture pattern when, because touching intensity and touch angle the problem of, cause to contact
Each lines in texture pattern has more visible, and some is relatively fuzzy, so when determining the curvature characteristic value of contact texture pattern,
Need to extract in contact texture pattern that clearly lines is reduced in order to the accurate curvature for calculating each lines first
The calculating error of the curvature characteristic value of texture pattern is contacted, the accuracy for determining and touching maloperation is improved.
Specifically, in order to determine the curvature value of each clear lines, in above-mentioned determination provided in an embodiment of the present invention
In method, it can specifically include：
The curvature value of each clear lines is calculated using following formula：
Wherein, AB indicates that a clear lines, Arc (AB) indicate that the curvature value of clear lines AB, L indicate clear lines AB
Between physical length, L' indicates the straight length between clear lines AB.
Specifically, by taking a lines shown in Fig. 3 as an example, wherein lines AB is extracted from contact texture pattern
The physical length of a wherein lines, lines AB is L, straight length L ', according to above-mentioned curvature calculation formula, you can is obtained
The curvature of lines AB, that is, the arc length of lines AB is L/L '；Therefore, when the value of Arc (AB) is bigger, illustrate the song of lines AB
Degree is bigger, and the value of Arc (AB) gets over hour, illustrates that the curvature of lines AB is smaller, when the value of Arc (AB) is 1, illustrates that lines AB is
Straight line, without curvature, so, the value of Arc (AB) is the real number not less than 1.
In the specific implementation, it in order to determine whether touch operation is to touch maloperation, is provided in the embodiment of the present invention
Above-mentioned determining method in step S103 by curvature characteristic value and the preset normal touch of the contact texture pattern determined
The curvature feature reference point of the contact texture pattern of operation is compared, and determines whether touch operation is to touch maloperation, can be with
It specifically includes：
According to the curvature characteristic value for the contact texture pattern determined and the contact lines of preset normal touch operation
The curvature feature reference point of figure determines and touches maloperation discriminant value；
When determining that touching maloperation discriminant value is more than preset touch maloperation threshold limit, it is determined that touch operation is
Touch maloperation；
When determining that touching maloperation discriminant value is not more than preset touch maloperation threshold limit, it is determined that touch operation
For normal touch operation.
Specifically, preset touch maloperation threshold limit is an empirical value, is counted according to lot of experimental data
The result come；In addition, because the lines of each finger and palm is all different, and when obtaining contact texture pattern, everyone
In the contact dynamics of different moments and the difference of contact angle so that it is significantly poor that the contact texture pattern of same person will produce
Away from so preset touch maloperation threshold limit varies with each individual；Meanwhile because of the lines of each finger and palm not phase
Together so that the curvature feature reference point of the contact texture pattern of preset normal touch operation is also to vary with each individual；Therefore, exist
When actually using touch apparatus, the contact texture pattern for obtaining finger in advance is needed, and the song of contact texture pattern is calculated
Feature reference point and preset touch maloperation threshold limit are spent, in order to during touch operation later, be convenient for area
Divide whether touch operation is to touch maloperation.
Specifically, in order to determine to touch maloperation discriminant value, in above-mentioned determination side provided in an embodiment of the present invention
In method, according to the curvature characteristic value for the contact texture pattern determined and the contact lines figure of preset normal touch operation
The curvature feature reference point of shape determines and touches maloperation discriminant value, can specifically include：
It is calculated using following formula and touches maloperation discriminant value：
Wherein, R indicates the curvature characteristic value for the contact texture pattern determined, R0Indicate preset normal touch operation
The curvature feature reference point of texture pattern is contacted, T indicates to touch maloperation discriminant value.
The above-mentioned determining method provided below in conjunction with specific embodiment the present invention will be described in detail embodiment.
Embodiment one：In conjunction with the flow chart of method as shown in Figure 4.
S401, when receiving touching signals, obtain the contact texture pattern of touch operation；
All clear lines for including in the contact texture pattern that S402, extraction are got；
S403, the curvature value for determining each clear lines respectively；
S404, contact texture pattern is obtained after handling the curvature value for each clear lines determined according to weighted average
Curvature characteristic value；
The contact curvature characteristic value of texture pattern and connecing for preset normal touch operation that S405, basis are determined
The curvature feature reference point of texture pattern is touched, determines and touches maloperation discriminant value；
S406, determine whether touch maloperation discriminant value is more than preset touch maloperation threshold limit；If so, executing
Step S407；If it is not, thening follow the steps S408；
S407, determine that touch operation is to touch maloperation；
S408, determine that touch operation is normal touch operation.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of determining device touching maloperation, due to this
The principle that device solves the problems, such as is similar to a kind of aforementioned touch determination method of maloperation, therefore the implementation of the device may refer to
The implementation of method, overlaps will not be repeated.
Specifically, the determining device of above-mentioned touch maloperation provided in an embodiment of the present invention, as shown in figure 5, may include：
Acquisition module 501, the contact texture pattern for when receiving touching signals, obtaining touch operation；
First determining module 502, for according to each lines for including in the contact texture pattern got, determining contact line
The curvature characteristic value of road figure；
Second determining module 503, the curvature characteristic value of the contact texture pattern for that will determine normally are touched with preset
The curvature feature reference point for touching the contact texture pattern of operation is compared, and determines whether touch operation is to touch maloperation.
In the specific implementation, in above-mentioned determining device provided in an embodiment of the present invention, the first determining module 502 is specifically used
All clear lines for including in the contact texture pattern that extraction is got；The curvature value of each clear lines is determined respectively；It will
The curvature value for each clear lines determined obtains the curvature characteristic value of contact texture pattern after being handled according to weighted average.
In the specific implementation, in above-mentioned determining device provided in an embodiment of the present invention, the first determining module 502 is specifically used
In the curvature value for calculating each clear lines using following formula：
Wherein, AB indicates that a clear lines, Arc (AB) indicate that the curvature value of clear lines AB, L indicate clear lines AB
Between physical length, L' indicates the straight length between clear lines AB.
In the specific implementation, in above-mentioned determining device provided in an embodiment of the present invention, the second determining module 503 is specifically used
The contact texture pattern of the curvature characteristic value for contacting texture pattern and preset normal touch operation determined in basis
Curvature feature reference point determines and touches maloperation discriminant value；Determining that touching maloperation discriminant value is more than preset touch accidentally behaviour
When being restricted threshold value, it is determined that touch operation is to touch maloperation；Determining that touch maloperation discriminant value touches no more than preset
When touching maloperation threshold limit, it is determined that touch operation is normal touch operation.
In the specific implementation, in above-mentioned determining device provided in an embodiment of the present invention, the second determining module 503 is specifically used
Maloperation discriminant value is touched in being calculated using following formula：
Wherein, R indicates the curvature characteristic value for the contact texture pattern determined, R0Indicate preset normal touch operation
The curvature feature reference point of texture pattern is contacted, T indicates to touch maloperation discriminant value.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The application is with reference to method, the flow of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
An embodiment of the present invention provides a kind of determination method and determining device touching maloperation, which is included in
When receiving touching signals, the contact texture pattern of touch operation is obtained；Include according in the contact texture pattern got
Each lines determines the curvature characteristic value of contact texture pattern；By the curvature characteristic value for the contact texture pattern determined and preset
The curvature feature reference point of contact texture pattern of normal touch operation be compared, determine whether touch operation is to touch to miss
Operation.Therefore, this method is analyzed by the curvature for each lines for including in the contact texture pattern to getting, and determination connects
The curvature characteristic value of texture pattern is touched, and is compared with curvature feature reference point when normal touch operation, so that it is determined that going out
Whether the touch operation is to touch maloperation, and this method calculates simply, quickly and effectively, need to only rely on the curvature of lines that can determine
It is that palm touches or finger touches, and then determines whether touch operation is to touch maloperation, facilitates the touch operation of user,
The errored response number for greatly reducing touch control device simultaneously, increases the usage experience of user.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of determination method touching maloperation, which is characterized in that including：
When receiving touching signals, the contact texture pattern of touch operation is obtained；
According to each lines for including in the contact texture pattern got, the curvature feature of the contact texture pattern is determined
Value；
By the contact texture pattern of the curvature characteristic value and preset normal touch operation of the contact texture pattern determined
Curvature feature reference point be compared, determine the touch operation whether be touch maloperation.
2. determining method as described in claim 1, which is characterized in that in the contact texture pattern that the basis is got
Including each lines, determine it is described contact texture pattern curvature characteristic value, specifically include：
Extract all clear lines for including in the contact texture pattern got；
The curvature value of each clear lines is determined respectively；
The contact texture pattern is obtained after the curvature value for each clear lines determined is handled according to weighted average
Curvature characteristic value.
3. determining method as claimed in claim 2, which is characterized in that the curvature for determining each clear lines respectively
Value, specifically includes：
The curvature value of each clear lines is calculated using following formula：
Wherein, AB indicates that a clear lines, Arc (AB) indicate that the curvature value of the clear lines AB, L indicate described clear
Physical length between clear lines AB, L' indicate the straight length between the clear lines AB.
4. determining method as described in claim 1, which is characterized in that the song by the contact texture pattern determined
Degree characteristic value is compared with the curvature feature reference point of the contact texture pattern of preset normal touch operation, determines described touch
Touch whether operation is to touch maloperation, specifically includes：
According to the curvature characteristic value for the contact texture pattern determined and the contact lines of preset normal touch operation
The curvature feature reference point of figure determines and touches maloperation discriminant value；
When determining that the touch maloperation discriminant value is more than preset touch maloperation threshold limit, it is determined that the touch behaviour
As touch maloperation；
When determining that the touch maloperation discriminant value is not more than preset touch maloperation threshold limit, it is determined that the touch
Operation is normal touch operation.
5. determining method as claimed in claim 4, which is characterized in that the contact texture pattern that the basis is determined
The curvature feature reference point of curvature characteristic value and the contact texture pattern of preset normal touch operation is determined to touch and accidentally be grasped
Make discriminant value, specifically includes：
It is calculated using following formula and touches maloperation discriminant value：
Wherein, R indicates the curvature characteristic value for the contact texture pattern determined, R0Indicate preset normal touch operation
The curvature feature reference point of texture pattern is contacted, T indicates the touch maloperation discriminant value.
6. a kind of determining device touching maloperation, which is characterized in that including：
Acquisition module, the contact texture pattern for when receiving touching signals, obtaining touch operation；
First determining module, for according to each lines for including in the contact texture pattern got, determining the contact
The curvature characteristic value of texture pattern；
Second determining module, for grasping the curvature characteristic value for the contact texture pattern determined and preset normal touch
The curvature feature reference point of the contact texture pattern of work is compared, and determines whether the touch operation is to touch maloperation.
7. determining device as claimed in claim 6, which is characterized in that first determining module is specifically used for extraction and gets
The contact texture pattern in include all clear lines；The curvature value of each clear lines is determined respectively；It will determine
The curvature value of each clear lines gone out obtains the curvature characteristic value of the contact texture pattern after being handled according to weighted average.
8. determining device as claimed in claim 7, which is characterized in that first determining module is specifically used for using following public
Formula calculates the curvature value of each clear lines：
Wherein, AB indicates that a clear lines, Arc (AB) indicate that the curvature value of the clear lines AB, L indicate described clear
Physical length between clear lines AB, L' indicate the straight length between the clear lines AB.
9. determining device as claimed in claim 6, which is characterized in that second determining module is specifically used for basis and determines
The contact texture pattern curvature characteristic value and preset normal touch operation contact texture pattern curvature feature
Reference point determines and touches maloperation discriminant value；Determining the touch maloperation discriminant value more than preset touch maloperation limit
When threshold value processed, it is determined that the touch operation is to touch maloperation；Determining the touch maloperation discriminant value no more than default
Touch maloperation threshold limit when, it is determined that the touch operation be normal touch operation.
10. determining device as claimed in claim 9, which is characterized in that second determining module is specifically used for using as follows
Formula, which calculates, touches maloperation discriminant value：
Wherein, R indicates the curvature characteristic value for the contact texture pattern determined, R0Indicate preset normal touch operation
The curvature feature reference point of texture pattern is contacted, T indicates the touch maloperation discriminant value.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020078344A1 (en) * | 2018-10-16 | 2020-04-23 | 华为技术有限公司 | Method for identifying special-shaped touch, terminal and storage medium |
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| CN111064842B (en) * | 2018-10-16 | 2021-11-19 | 华为技术有限公司 | Method, terminal and storage medium for recognizing special-shaped touch |
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Application publication date: 20180925 |